Model-aided Geometrical Shaping of Dual-polarization 4D Formats in the Nonlinear Fiber Channel

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Oct 22, 2021
Gabriele Liga, Bin Chen, Alex Alvarado
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The geometry of dual-polarization four-dimensional constellations is optimized in the optical fiber channel using a recent nonlinear interference model. A 0.27 bit/4D rate gain and 13% reach increase are attained compared to polarization-multiplexed formats.

* Submitted to the Optical Fiber Communication Conference (OFC) 2022  
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